national polls show the candidate in a dead heat with president obama but behind most of the swing states scott pelley asked romney in to 960 minutes >>> you are slipping in the polls at this moment republicans are concerned about the campaign >>> actually a where it tied in the polls we're within the margin of error it bounces around day to day, >>> number one issue remains the economy on face the nation former president bill clinton defended the obama administration's economic plan >>> more likely to produce broadbased prosperity than romney's plan people will see that unless they believe that somehow magically somebody can rest back to full employment in four years. >>> the democrats continue to go after run a clamming his plan lacks specifics >>> that not offer specifics out to lift up the country >>>. republican committee fired back at some republicans >>> we are the only ones talking about how to save medicare the president rated medicare we have specifics coming out of our eyeballs >>> both camps expect to bring specifics to the voters dru levenson cbs news >>> you can see all of m